Assume the regression equation is y=$75 + $25x and we are predicting the weekly grocery expenditures where x=number of family members.How much would a family of 4 spend on groceries per week?
A)$700
B)$400
C)$175
D)$100
E)$425

Question

Quizplus · Accepted Answer

To calculate the weekly grocery expenditures for a family of 4, substitute x=4 into the regression equation: y = $75 + $25(4) = $75 + $100 = $175.

Assume the Regression Equation Is Y=$75 + $25x and We